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TPS7A52-Q1

ACTIVE

Automotive 2-A, low-VIN (1.1-V), low-noise, high-accuracy, ultra-low-dropout (LDO) voltage regulator

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Data sheet

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NEW TPS7A57-Q1 ACTIVE Automotive, 5A, low-input-voltage, low-noise, high-accuracy low-dropout (LDO) voltage regulator Higher current with lower dropout and superior load transient response

TPS7A52-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Vin (max) (V) 6.5 Vin (min) (V) 1.1 Iout (max) (A) 2 Output options Adjustable Output Vout (max) (V) 5.2 Vout (min) (V) 0.8 Noise (µVrms) 4.4 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 3 Features Enable, Foldback Overcurrent protection, Output discharge, Power good, Soft start, Wettable flanks package Thermal resistance θJA (°C/W) 40 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 22 Regulated outputs (#) 1 Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 95 Operating temperature range (°C) -40 to 150
Rating Automotive Vin (max) (V) 6.5 Vin (min) (V) 1.1 Iout (max) (A) 2 Output options Adjustable Output Vout (max) (V) 5.2 Vout (min) (V) 0.8 Noise (µVrms) 4.4 PSRR at 100 KHz (dB) 45 Iq (typ) (mA) 3 Features Enable, Foldback Overcurrent protection, Output discharge, Power good, Soft start, Wettable flanks package Thermal resistance θJA (°C/W) 40 TI functional safety category Functional Safety-Capable Load capacitance (min) (µF) 22 Regulated outputs (#) 1 Accuracy (%) 1 Dropout voltage (Vdo) (typ) (mV) 95 Operating temperature range (°C) -40 to 150
VQFNP (RTK) 20 16 mm² (4 mm × 4 mm) VQFN (RGR) 20 12.25 mm² (3.5 mm × 3.5 mm)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified for Automotive Applications:
    • Temperature Grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C4A
  • Extended Junction Temperature (TJ) Range: –40°C to +150°C
  • Input Voltage Range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to 6.5 V
  • Adjustable Output Voltage Range: 0.8 V to 5.2 V
  • Low Dropout: 115 mV (max) at 2 A With BIAS
  • Output Voltage Noise: 4.4 µVRMS
  • 1% (max) Accuracy Over Line, Load, and Temperature With BIAS
  • Power-Supply Ripple Rejection:
    • 40 dB at 500 kHz
  • Adjustable Soft-Start Inrush Control
  • Open-Drain, Power-Good (PG) Output
  • Packages:
    • 3.5-mm × 3.5-mm, 20-Pin VQFN
    • 4-mm × 4-mm, 20-Pin VQFNP With Wettable Flanks and High CTE (12 ppm/°C) Mold Compound
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified for Automotive Applications:
    • Temperature Grade 1: –40°C ≤ TA ≤ +125°C
    • HBM ESD Classification Level 2
    • CDM ESD Classification Level C4A
  • Extended Junction Temperature (TJ) Range: –40°C to +150°C
  • Input Voltage Range:
    • Without BIAS: 1.4 V to 6.5 V
    • With BIAS: 1.1 V to 6.5 V
  • Adjustable Output Voltage Range: 0.8 V to 5.2 V
  • Low Dropout: 115 mV (max) at 2 A With BIAS
  • Output Voltage Noise: 4.4 µVRMS
  • 1% (max) Accuracy Over Line, Load, and Temperature With BIAS
  • Power-Supply Ripple Rejection:
    • 40 dB at 500 kHz
  • Adjustable Soft-Start Inrush Control
  • Open-Drain, Power-Good (PG) Output
  • Packages:
    • 3.5-mm × 3.5-mm, 20-Pin VQFN
    • 4-mm × 4-mm, 20-Pin VQFNP With Wettable Flanks and High CTE (12 ppm/°C) Mold Compound

The TPS7A52-Q1 device is a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 2 A with only 115 mV of maximum dropout. The device output voltage is adjustable from 0.8 V to 5.2 V using an external resistor divider.

The combination of low-noise (4.4 µVRMS), high-PSRR, and high output current capability makes the TPS7A52-Q1 ideal to power noise-sensitive components such as those found in radar power and infotainment applications. The high performance of this device limits power-supply-generated phase noise and clock jitter, making this device ideal for powering RF amplifiers, radar sensors, and chipsets. Specifically, RF amplifiers benefit from the high-performance and 5.0-V output capability of the device.

For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (1% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A52-Q1 provides optimal system performance.

The versatility of the TPS7A52-Q1 makes the device a component of choice for many demanding applications.

 

The TPS7A52-Q1 device is a low-noise (4.4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 2 A with only 115 mV of maximum dropout. The device output voltage is adjustable from 0.8 V to 5.2 V using an external resistor divider.

The combination of low-noise (4.4 µVRMS), high-PSRR, and high output current capability makes the TPS7A52-Q1 ideal to power noise-sensitive components such as those found in radar power and infotainment applications. The high performance of this device limits power-supply-generated phase noise and clock jitter, making this device ideal for powering RF amplifiers, radar sensors, and chipsets. Specifically, RF amplifiers benefit from the high-performance and 5.0-V output capability of the device.

For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs)] requiring low-input voltage, low-output (LILO) voltage operation, the exceptional accuracy (1% over load and temperature), remote sensing, excellent transient performance, and soft-start capabilities of the TPS7A52-Q1 provides optimal system performance.

The versatility of the TPS7A52-Q1 makes the device a component of choice for many demanding applications.

 
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Technical documentation

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Top documentation Type Title Format options Date
* Data sheet TPS7A52-Q1 2-A, High-Accuracy, Automotive-Grade, Low-Noise, LDO Voltage Regulator datasheet (Rev. B) PDF | HTML Jun 26, 2018
White paper Reduce System Noise Using Parallel LDOs PDF | HTML Nov 3, 2025
White paper Parallel LDO Architecture Design Using Ballast Resistors PDF | HTML Dec 14, 2022
White paper Comprehensive Analysis and Universal Equations for Parallel LDO's Using Ballast PDF | HTML Dec 13, 2022
Functional safety information TPS7A52-Q1 Functional Safety FIT Rate, FMD and Pin FMA PDF | HTML Sep 23, 2022
More literature Fundamentals of designing with LDOs in auto battery direct connect applications Feb 27, 2017

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

TPS7A52EVM-002 — TPS7A52-Q1 2-A low-VIN (1.1-V) low-noise high-accuracy ultra-LDO voltage regulator evaluation module

The TPS7A52EVM-002 evaluation module (EVM) is designed for a typical configuration to evaluate the operation and performance of the TPS7A52-Q1 device, which is an automotive-grade 2-A low-dropout (LDO) voltage regulator.

The EVM circuit board is configured to be a reference design for engineering (...)

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Simulation model

TPS7A5201 PSpice Transient Model

SBVM755.ZIP (35 KB) - PSpice model
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Simulation model

TPS7A5201 Unencrypted PSpice Transient Model

SBVM756.ZIP (2 KB) - PSpice model
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Calculation tool

PARALLEL-LDO-CALC — Parallel low-dropout (LDO) calculator

The parallel low-dropout (LDO) calculator is a Microsoft® Excel®-based tool that provides worst-case analysis for parallel LDO regulators using ballast resistors. The tool helps the user identify the minimum number of parallel LDO regulators required and optimum ballast resistance for a (...)

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Reference design

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This reference design is a solution for a 76 to 81 GHz radar sensor module. The power supplies on board convert the automotive battery input to the required rails for the radar AFE, processors and CAN FD transceiver. All of these functions are included in a small form factor PCB suitable for front (...)
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Package Pins CAD symbols, footprints & 3D models
VQFNP (RTK) 20 Ultra Librarian
VQFN (RGR) 20 Ultra Librarian
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